FUSE CHARACTERISTICS
60269 part 4) If application does not meet this condition – derate current rating Example: - 200A square body fuse is mounted onto a busbar with cross sectional area 120mm2 - 2Minimum cross sectional area for 200A fuse: 200/1.3 = 154mm-120mm2 is only 70% of IEC recommended size - Thermal connection factor – 0.96
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